Sökning: "Liquid membrane extraction"
Visar resultat 16 - 20 av 21 avhandlingar innehållade orden Liquid membrane extraction.
16. Recovery of Rare Earth Elements from an Apatite Concentrate
Sammanfattning : Rare earth elements (REE) are a group of 17 elements including lanthanides, yttrium and scandium; which are found in a variety of classes of minerals worldwide. The criticality of the application, lack of high grade and economically feasible REE resources and a monopolistic supply situation has raised significant attention in recovery of these metals from low grade ores and waste materials. LÄS MER
17. Novel Microextraction Techniques for Bioanalysis of Neurotransmitters and Biomarkers in Biological Fluids
Sammanfattning : Sample preparation (sample pre-treatment) is the initial step and an essential part in bioanalysis procedure. The main role of sample preparation is to extract and transfer the analyte(s) of interest from a complex matrix to a purified media such as a pure solvent for analysis and quantification. LÄS MER
18. ω-Transaminase Catalyzed Synthesis of Chiral Amines - Process Improvements Through Whole-cell Immobilization and in situ Product Removal
Sammanfattning : The industrial use of biocatalysts is increasingly important in the production of e.g. pharmaceuticals, chemicals, fuels and foodstuffs. A successful biocatalytic process is dependent on many factors, such as the biocatalyst properties, the nature of the reaction, reactor type and downstream processing. LÄS MER
19. Biochemical studies of carbohydrate blood group antigens - Carbohydrate phenotype in relation to cellular glycosyltranferases
Sammanfattning : The possibility to alter the cell surface carbohydrate expression by insertion or deletion of glycosyltransferase genes is a powerful technique to study the biological function of selected carbohydrate antigens. However, shifting the equilibrium between competing glycosyltransferases might lead to unexpected phenotypic effects, such as accumulation of other carbohydrate antigens and exposure of antigen structures that normally are cryptic or present in minute amounts on the cell surface. LÄS MER
20. Analytical developments and applications of ambient mass spectrometry imaging : Visualizing challenging analytes and understanding chemical mechanisms of ischemic stroke
Sammanfattning : Bioanalytical methods that provide spatial information on molecular distributions are important for deep understanding of chemical mechanisms in health and disease. For instance, the localized action of drugs and metabolites can provide valuable information on metabolism in specific cellular regions, which would not be possible with bulk analysis. LÄS MER
